Tag Archives: Li-ion

NGK Insulators has teamed up with Rohm to produce a complete energy storage evaluation kit for IoT devices including shelf-edge labels. Called REFLVBMS001-EVK-001, it measures 56 x 32 x 1.6mm and the components, including the battery, stand a maximum of 1mm above the PCB. It can accept power at 4.5 to 5.5V, and outputs up to 500mA at one of ...

While lithium ion cells have many wonderful characteristics, one of the great limitations is that they cannot be charged below 0°C. This statement, it turns out, is slightly glib as there is one Li-ion chemistry that can handle it: lithium titanate, it is usually called. And just a note here: not all lithium titanate cells are so blessed. One manufacturer ...

Littelfuse has invented an AEC-Q200-qualified temperature monitoring tape for electric vehicle batteries. Branded TTape, it detects local over-heating via thermally sensitive spots spaced along its length, all connected in series. The spots are positive temperature coefficient thermistors. “Distinguishing itself from NTCs [negative temperature coefficient thermistors], the profound advantage of localised cell overheating detection ensures quicker alerts to the battery management ...

For Li-ion battery packs up to 25V, STMicroelectronics has introduced an IC for monitoring, balancing and protection, aiming at cordless power tools, back-up energy storage and medical devices. Called L9961, its “built-in features include a dual pre-driver for controlling battery-pack safety relays, which can be programmed for high-side and low-side connection”, said ST. “An embedded non-volatile memory for configuration data ...

Amprius Technologies of California is claiming energy density of 500Wh/kg and 1.3kWh/litre from its latest demonstration of lithium-ion battery technology. This is about double the capacity of today’s general purpose cells. “The energy density performance was verified by [test house] Mobile Power Solutions. The results indicate that this cell model provides >504Wh/kg and >1,321Wh/litre at 25°C,” according to Amprius. This ...

Already aware of NGK’s interesting EnerCera solid-state lithium-ion cells, I recently came across TDK’s CeraCharge surface-mount solid state rechargeable battery, which appeared in 2020. Intended for load-levelling in energy harvesting applications and backing up real-time clocks, there is one TDK CeraCharge part, the 1812 packaged (4.4 x 3 x 1.1mm) BCT1812M101AG, which operates across 0 to 1.6V (1.5V nominal) and ...

Nordic Semiconductor has announced a power management IC for devices with Bluetooth Low Energy interfaces that includes battery charging and four regulated power outputs. To be called nPM1300, it is to emerge in 3.1 x 2.4mm WL-CSP or 5 x 5mm QFN packaging and be controllable over an I2C compatible interface. “The interface provides access to system management functions such ...

NGK Insulators has revealed a fuel-gauging evaluation kit for its novel Enercera lithium ion cells, some of which are amongst the few Li-ion cells to be chargeable below 0°C, and some of which can be float-charged. “As part of development support,” said the company, “NGK will provide all customers that use EnerCera with reference designs and evaluation boards free-of-charge starting ...

Oxfordshire silicon anode firm Nexeon has has licensed its NSP-1 material to Korean giant SKC, an investor in Nexeon. “Silicon-graphite hybrid electrodes are now delivering superior performance in hybrid and EV vehicles,” said SKC v-p Junghwan Shin. This arrangement follows the investment and strategic partnership announced between the two companies in January, and represents further income, said Nexeon: “The exclusive ...

Oxfordshire-based silicon anode research company Nexeon has landed a $80m investment from a consortium including SKC, SJL Partners, BNW Investment and Kiwoom Private Equity. “SKC, a $5bn market cap company, is one of Korea’s leading advanced materials companies, with a strategic focus on rechargeable battery and semiconductor materials,” according to Nexeon. “Through this transaction, Nexeon enters into a strategic partnership ...